Effect of 1-Butyl-1-Methylpyrrolidnium Dicyanamide on the Structure of Pd Electrodeposit
In this work, structure of the Pd electrodeposited in 1-butyl-methylpyrrolidinium dicyanamide ([Bmpyrr][DCA]) is studied. Due to the metal complexing ability of [DCA]- anions, previous works have shown that [Bmpyrr][DCA] is a suitable room-temperature ILs to electrodeposit Pd (6, 7). After electrodeposition, we found significant presence of nitrogen on the Pd deposits through X-ray photoelectron spectroscopy (Figure 1). Since the source of nitrogen cannot be atmosphere, we hypothesized that the nitrogen was from [Bmpyrr][DCA] tethered to the Pd electrodeposit. This raises interesting questions as to the role of ILs in the structure of the Pd deposits. We will present further characterization of the Pd deposits using X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron microscopy (XPS) to study the role of [Bmpyrr][DCA] on structure of the Pd deposit.
1. F. Endres, D. R. MacFarlane and A. P. Abbott, Electrodeposition from ionic liquids, WILEY-VCH Verlag GmbH & Co. KGaA, Germany (2008).
2. A. P. Abbott, G. Frisch and K. S. Ryder, Annual Review of Materials Research, 43, 335 (2013).
3. T. Mehner, D. Nickel, S. Nehrkorn, A. Yulinova, M. Pügner, I. Scharf, G. Lanzinger, R. Böck and T. Lampke, Advanced Engineering Materials, 1 (2014).
4. I. W. Sun and C. L. Hussey, Journal of Electroanalytical Chemistry, 274, 325 (1989).
5. S. Schaltin, N. R. Brooks, J. Sniekers, L. Van Meervelt, K. Binnemans and J. Fransaer, Chemical Communications, 50, 10248 (2014).
6. H.-Y. Huang and P.-Y. Chen, Talanta, 83, 379 (2010).